Seal



FIG. 1 is a perspective view of a seal showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is bottom view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left side thereof;

FIG. 8 is a cross-sectional view of the portion VIII-VIII of FIG. 4; and,

FIG. 9 is an enlarged cross-sectional view of the portion IX-IX of FIG. 8. 

CLAIM The ornamental design for a seal, as shown and described. 